Rbexec

Run code inside an existing ruby process. Similar to rbtrace -p $pid -e '...', but more reliable.

Installation

$ bundle add rbexec

Usage

During the boot of the process you would like to execute code in (ex. config/puma.rb)

require "rbexec"
Rbexec::Listener.new(path: "tmp/puma.rbexec.sock")

This creates a socket which can be written to.

$ echo "GC.stat" | socat - UNIX-CONNECT:tmp/puma.rbexec.sock
rbexec pid:1176594. Enter code followed by EOF.
{:count=>57, :time=>741, ...

Development

After checking out the repo, run bin/setup to install dependencies. You can also run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and the created tag, and push the .gem file to rubygems.org.

Contributing

Bug reports and pull requests are welcome on GitHub at https://github.com/jhawthorn/rbexec. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the code of conduct.